<template>
  <!-- 最外层的容器 -->
  <view class="my-settle-container">
    <!-- 全选区域 -->
    <label class="radio" @click="changeAllState">
      <radio color="#C00000" :checked="isFullCheck" /><text>全选</text>
    </label>
  
    <!-- 合计区域 -->
    <view class="amount-box">
      合计:<text class="amount">￥{{checkgoodsAmount}}</text>
    </view>
    
    <!-- 结算按钮 -->
    <view class="btn-settle" @click="settlement">结算({{checkedCount}})</view>
  </view>
</template>

<script>
import { mapGetters, mapMutations, mapState } from 'vuex'

export default {
  name:"my-settle",
  data() {
    return {
      // 倒计时秒数
      seconds:3,
      // 定时器的id
      timer:null
    }
  },
  methods: {
    ...mapMutations('m_cart',['updateAllGoodsState']),
    ...mapMutations('m_user',['updateRedirectInfo']),
    ...mapGetters('m_user',['addstr']),
    changeAllState() {
      // console.log(!this.isFullCheck)
      this.updateAllGoodsState(!this.isFullCheck)
    },
   // 点击了结算按钮
   settlement() {
     // 1. 先判断是否勾选了要结算的商品
     if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
     console.log(this.addstr)
     // 2. 再判断用户是否选择了收货地址
     if (this.addstr() === '') return uni.$showMsg('请选择收货地址！')
   
     // 3. 最后判断用户是否登录了
     // if (!this.token) return uni.$showMsg('请先登录！')
     if (!this.token) this.delayNavigate()
     
     this.payOrder()
   },
  // 微信支付
  async payOrder() {
    // 1. 创建订单
    // 1.1 组织订单的信息对象
    const orderInfo = {
      // 开发期间，注释掉真实的订单价格，
      // order_price: this.checkedGoodsAmount,
      // 写死订单总价为 1 分钱
      order_price: 0.01,
      consignee_addr: this.addstr,
      goods: this.cart.filter(x => x.goods_state).map(x => ({ goods_id: x.goods_id, goods_number: x.goods_count, goods_price: x.goods_price }))
    }
    // 1.2 发起请求创建订单
    const { data: res } = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
    if (res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
    // 1.3 得到服务器响应的“订单编号”
    const orderNumber = res.message.order_number

     // 2. 订单预支付
     // 2.1 发起请求获取订单的支付信息
     const { data: res2 } = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', { order_number: orderNumber })
     // 2.2 预付订单生成失败
     if (res2.meta.status !== 200) return uni.$showError('预付订单生成失败！')
     // 2.3 得到订单支付相关的必要参数
     const payInfo = res2.message.pay

     // 3. 发起微信支付
     // 3.1 调用 uni.requestPayment() 发起微信支付
     const [err, succ] = await uni.requestPayment(payInfo)
     // 3.2 未完成支付
     if (err) return uni.$showMsg('订单未支付！')
     // 3.3 完成了支付，进一步查询支付的结果
     const { data: res3 } = await uni.$http.post('/api/public/v1/my/orders/chkOrder', { order_number: orderNumber })
     // 3.4 检测到订单未支付
     if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
     // 3.5 检测到订单支付完成
     uni.showToast({
       title: '支付完成！',
       icon: 'success'
     })
   },
   // 延时导航到 my 页面
   delayNavigate() {
     this.showTips(this.seconds)
     
     this.timer = setInterval(() => {
       this.seconds--
       if(this.seconds <= 0) {
         clearInterval(this.timer)
         uni.switchTab({
           url:'/pages/my/my',
           success: () => {
             this.updateRedirectInfo({
               openType:'switchTab',
               from: '/pages/cart/cart'
             })
           }
         })
         this.seconds = 3
         return
       }
       this.showTips(this.seconds)
     }, 1000)
   },
   // 展示倒计时的提示效果
   showTips(n) {
     uni.showToast({
       title:'请登录后再结算！' + n + '秒后自动跳转到登录页',
       icon:'none',
       mask:true,
       duration:1500
     })
   },
  },
  computed: {
    ...mapGetters('m_cart', ['checkedCount','total','checkgoodsAmount']),
    ...mapState('m_user',['token']),
    ...mapState('m_cart',['cart']),
    isFullCheck() {
      return this.total === this.checkedCount
    }
  },
}
</script>

<style lang="scss">
.my-settle-container {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50px;
  // 将背景色从 cyan 改为 white
  background-color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 5px;
  font-size: 14px;

  .radio {
    display: flex;
    align-items: center;
  }

  .amount {
    color: #c00000;
  }

  .btn-settle {
    height: 50px;
    min-width: 100px;
    background-color: #c00000;
    color: white;
    line-height: 50px;
    text-align: center;
    padding: 0 10px;
  }
}
</style>